LAUTECH CHEMISTRY 2010 POST-UTME CHEMISTRY LADOKE AKINTOLA UNIVERSITY 2010
LAUTECH CHEMISTRY 2010 POST-UTME
CHEMISTRY
LADOKE AKINTOLA UNIVERSITY
2010
_________________________________________________1. Electrophiles are
A. Electron deficient species
B. Electron rich species
C. Free radical species
D. Negatively charged species2. T he basic unit of synthetic rubber is
A. Isoprene
B. Pentane
C. Butadiene
D. Butene3. T he empirical formula of a hydrocarbon that contains 93.3% carbon is
(C= 12, H= 13)
A. CH
B. CH 2
C. C 2 H
D. C 2 H 24. T he type of hybridization in all the carbon in the saturated hydrocarbon is
A. SP 3
B. SP 2
C. SP
D. PS 35. W hat are the oxidation number of manganese in the anions MnO 2- and MnO 4- ?
A. +7 and +6
B. +2 and +7
C. +4 and +4
D. +2 and +36. T he number of electrons in the K, L, M and N shells of calcium are respectively
A. 2, 8, 8, 2
B. 2, 2, 8, 8
C. 2, 8, 2, 8
D. 8, 8, 2, 2
CHEMISTRY
LADOKE AKINTOLA UNIVERSITY
2010
_________________________________________________1. Electrophiles are
A. Electron deficient species
B. Electron rich species
C. Free radical species
D. Negatively charged species2. T he basic unit of synthetic rubber is
A. Isoprene
B. Pentane
C. Butadiene
D. Butene3. T he empirical formula of a hydrocarbon that contains 93.3% carbon is
(C= 12, H= 13)
A. CH
B. CH 2
C. C 2 H
D. C 2 H 24. T he type of hybridization in all the carbon in the saturated hydrocarbon is
A. SP 3
B. SP 2
C. SP
D. PS 35. W hat are the oxidation number of manganese in the anions MnO 2- and MnO 4- ?
A. +7 and +6
B. +2 and +7
C. +4 and +4
D. +2 and +36. T he number of electrons in the K, L, M and N shells of calcium are respectively
A. 2, 8, 8, 2
B. 2, 2, 8, 8
C. 2, 8, 2, 8
D. 8, 8, 2, 2